• Issues relating to licensing and liability for small modular reactors in Africa 

  Nicholls, D.; Maqabuka, B.G.; Connell, S.H.; Naidoo, P.; Slabber, Johan F.M. (CIGRE, 2023-12)

  The internationally accepted nuclear regulation policy is for each country to undertake first principle analysis and approvals for the technical design and operating rules, benchmarking against nationally determined ...
• Photocatalytic degradation of phenol using visible light activated Ag-AgBr-hydrotalcite composite 

  Tabana, Lehlogonolo Shane; Tichapondwa, Shepherd Masimba (Italian Association of Chemical Engineering, 2023)

  Water pollution is one of the persistent environmental challenges that continues to impact numerous communities worldwide. As such, several sustainable remediation technologies have been developed over the years to ...
• Kinetic modelling of selenite reduction by Enterococcus spp in batch reactors 

  Tendenedzai, Job Tatenda; Chirwa, Evans M.N.; Brink, Hendrik G. (Italian Association of Chemical Engineering, 2023)

  Selenite (SeO3 2-) is a toxic selenium oxyanion which readily bio-accumulates in the food chain. Enterococcus species were found to reduce SeO3 2- to elemental selenium (Se0) more rapidly (in 1 h) as compared to ...
• Bandgap tailoring of ZnO using metallic sulphides for enhanced visible-light-active photocatalytic water treatment 

  Mugumo, Rachel; Ichipi, Emmanuel O.; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (Italian Association of Chemical Engineering, 2023)

  The combination of a wide bandgap Zinc oxide (ZnO ~3.4 eV) semiconductor photocatalyst with typical metallic sulphides, namely, silver sulphide (Ag2S), ferric sulphide (FeS) and nickel sulphide (NiS), all of a similar ...
• Kinetics and isotherms of a genetically engineered Saccharomyces cerevisiae EBY100 strain expressing palladium binding peptides for the biosorption of Pd (II) in a batch reactor 

  Mashangoane, Boitumelo Francina; Chirwa, Evans M.N.; Mahlathi, Chris (Italian Association of Chemical Engineering, 2023)

  Palladium is a rare platinum group metal concentrated in the Earth's core and mantle; because of its scarcity, its waste recovery and reuse options are economically appealing. Traditional strategies for extracting PGMs ...
• Adsorption of hexavalent chromium from wastewater using microcrystalline cellulose 

  Mhike, Washington; Dewa, Lovejoy; Tichapondwa, Shepherd Masimba (Italian Association of Chemical Engineering, 2023)

  In this study, microcrystalline cellulose (MCC) was utilised as an adsorbent for the removal of Cr(VI) from synthetic wastewater. FTIR spectroscopy confirmed the main characteristic infrared absorption bands of cellulose ...
• Visible-light-induced photocatalytic degradation of rhodamine B dye using a CuS/ZnS p-n heterojunction nanocomposite under visible-light irradiation 

  Mugumo, Rachel; Ichipi, Emmanuel O.; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (MDPI, 2023-08-03)

  The aim of this work was to investigate a new, simple, one-pot combustion synthesis technique for creating sulphur-based CuS/ZnS p-n heterojunction nanocomposite photocatalysts. This study examined the photocatalytic ...
• Sustainable utilization of value-added products from the catalytic and non-catalytic pyrolysis of motor car scrap tire: suitability of produced char for energy generation and sugar mill wastewater treatment 

  Ayeni, Augustine O.; Dick, Deinma T.; Agboola, Oluranti; Sadiku, Rotimi; Daramola, Michael Olawale; Oladokun, Olagoke; Alagbe, Edith E. (Elsevier, 2024-06)

  Please read abstract in the article.
• The application of bio-Pd(0) as a biogenic cathode in a microbial fuel cell 

  Malunga-Makatu, Khanyisile B.; Chirwa, Evans M.N.; Tichapondwa, Shepherd Masimba (The Italian Association of Chemical Engineering, 2023)

  The increasing concerns of climate change, energy generation, storage, consumption, and water pollution are topics that are gaining attention within modern research fields. This has led to numerous researchers devoting their ...
• Wood chips as a carbon source for denitrification in household slow sand filters 

  Mojela, Sintle M.; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (Italian Association of Chemical Engineering, 2023)

  The objective of this study was to evaluate the suitability of using woodchips as a carbon source for denitrification in intermittently operated household slow sand filters. This was accomplished through a series of batch ...
• Operational cost and emissions minimisation of a multi-microgrid system through energy management 

  Gildenhuys, Tiaan (University of Pretoria, 2019-12)

  Existing energy management problems for a multi-microgrid (MMG) system only minimise the operational cost. This study proposes a multi-objective operational cost and emissions minimisation (OCEM) problem for a grid-tied ...
• Fabrication and application of Ag, black TiO2 and nitrogen-doped 3D reduced graphene oxide (3D black TiO2/Ag/N@rGO) evaporator for efficient steam generation 

  Bezza, Fisseha Andualem; Iwarere, Samuel A.; Tichapondwa, Shepherd Masimba; Chirwa, Evans M.N. (MDPI, 2023-03-02)

  The scarcity of fresh water, which is aggravated by rapid economic development and population growth, is a major threat to the modern world. Solar-driven interfacial desalination and steam generation is a promising strategy ...
• MBSE-Lite : a framework for adopting model-based systems engineering in small and medium-sized enterprises in South Africa 

  Nanfuka, J.G.; Oosthuizen, Rudolph (Vilnius Gediminas Technical University, 2023)

  PURPOSE – This research aims to characterise the landscape and factors for successfully implementing Systems Engineering (SE) and Model-Based Systems Engineering (MBSE) in the enterprise. RESEARCH METHODOLOGY – The study ...
• Heat stress : adaptation measures in South African informal settlements 

  Hugo, Jan Marais (Ubiquity Press, 2023-01-12)

  Globally extreme weather events are experienced most acutely in cities. While formal settlements can respond to such events, informal settlements are often vulnerable and illprepared. Sub-Saharan Africa is rapidly ...
• Semantically annotated learning paths 

  Unternahrer, Charline; Hinkelmann, Knut; Schlick, Sandra (CEUR-WS, 2023)

  This paper shows an application of semantic lifting in the education domain. We present a metamodel for graphical representation of learning paths. This supports lecturers in the design of courses and learners to navigate ...
• The experience of using virtual reality for interactive spatial visualisation of environmental data 

  Bosman, Isak de Villiers; Smith, Annique Elizabeth; Ka, Kwan Sui Dave; De Beer, Koos; Maritz, J.A. (Jan) (CEUR-WS, 2023)

  Virtual reality possesses various properties that have the potential to be beneficial for the visualisation of spatial data, including intuitive gestural affordances for looking around and interacting with data and the ...
• In situ bioreduction of hexavalent chromium-contaminated water using a microbial culture barrier 

  Kholisa, Buyisile; Matsena, Mpumelelo Thomas; Chirwa, Evans M.N. (Wiley, 2023-06)

  Chromium (Cr) has been extensively used in many industrial applications. Inappropriate disposal of effluent has led to increased Cr concentrations in the environment. As a result, Cr(VI) has been classified under strict ...
• Characterisation of wear in natural rubber and polyurethane hydrocyclones used for minerals processing applications 

  Combrink, Simeon (University of Pretoria, 2020-04)

  Slurry wear is a common problem in the minerals processing industry. Hydrocyclones are widely used in wet mineral classification applications and can be notoriously prone to wear. This study investigated wear in hydrocyclones, ...
• Automated learning rates in machine learning for dynamic mini-batch sub-sampled losses 

  Kafka, Dominic (University of Pretoria, 2020-12)

  Learning rate schedule parameters remain some of the most sensitive hyperparameters in machine learning, as well as being challenging to resolve, in particular when mini-batch subsampling is considered. Mini-batch sub-sampling ...
• An IT strategic decision-making framework in the midst of disruptive technologies 

  Padayachee, Rajan (University of Pretoria, 2019-07)

  Technological disruption enabled by the internet revolution has resulted in an exponential increase in the growth of new technologies and resultant technology disruptions in the workplace. Many firms do not grasp the new ...

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